English word plurization

pluralize.php

<?php

/*
original : http://stackoverflow.com/a/34254595
*/

function getPluralPrase( $phrase, $value ) {
    $plural='';
    if( $value > 1 ) {
        for( $i = 0; $i < strlen( $phrase ); $i++ ) {
            if( $i == strlen( $phrase ) -1 ) {
                $plural .= ( $phrase[$i] == 'y' )? 'ies' : ( ( $phrase[$i] == 's' || $phrase[$i] == 'x' || $phrase[$i] == 'z' || $phrase[$i] == 'ch' || $phrase[$i] == 'sh' ) ? $phrase[$i] . 'es' : $phrase[$i] . 's' );
            } else {
                $plural .= $phrase[$i];
            }
        }
        return $plural;
    }
    return $phrase;
}

echo getPluralPrase( 'post', 1 ) . "\n"; //singular -> post
echo getPluralPrase( 'post', 2 ) . "\n"; //plural -> posts
echo getPluralPrase( 'summary', 1 ) . "\n"; //singular -> summary
echo getPluralPrase( 'summary', 2 ) . "\n"; //plural -> summaries